{"cve":"CVE-2001-1421","nvd":{"published":"2001-10-06T04:00:00.000","modified":"2026-06-16T21:56:14.500","status":"Modified","description":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.kb.cert.org/vuls/id/530299","http://www.kb.cert.org/vuls/id/JARL-569MD7","http://www.securityfocus.com/archive/1/218920","http://www.securityfocus.com/archive/1/247707","http://www.securityfocus.com/bid/3756"],"products":["aol:instant_messenger"],"source":"nvd","synced_at":"2026-10-19T19:33:02.361923049+00:00"},"epss":{"cve":"CVE-2001-1421","score":0.02424,"percentile":0.84195,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}